Auto-convection refill Canon PGI-750 CLI-751 BCI-350 BCI-351 PGI-550 CLI-551 ink cartridge
Introduction
Drain conduit (
Fill Needle) extends into the bottom of the ink cartridges,
Vent conduit (Air Needle) extends into the Ink
Level in the ink bottle,
Vent conduit provides the air to enter within the ink bottle,
Pressure the bottle twice,
By formation a nature convective circulation between in the the drain conduit and vent-conduit,
When the ink fill full, will be auto-stop the filling.
If any question, please send message to the mailbox. refillhouse@livemail.tw